Segmental box-type wrench with pivoted levers



Oct. 11, 1949. J. c. DINGLEY 2,

SEGMENTAL BOX-TYPE WRENCH WITH PIVOTED LEVEHS Fil ed Aug. 12, 1946INVENTOR.

I 74 /z AZ Jah 1 1/flpin9Zey ATTORNEY Patented Oct. 11, 1949 :SEGMENTALBOX-TYPE WRENCHWITH PIVOTED 'LEVERS .John C. Dingley, Rexburg, Idaho,assignor of onehalf to Sheldon J ."Morris, Pacoima, 1Calif.

Application August 12, 1946, Serial No. 690,005

2 Claims. 1

The invention relates to a hand tool, and more especially to a workenclosing wrench.

The primary object of the invention is the provision of a wrench of thischaracter, wherein it is of the closed-end type, so that nuts located ontubes, pipes, rods or the like, as used on fuel lines, conduits, etc.,which are inaccessible to box type wrenches, can be manipulated withease and dispatch, the wrench being once fitted on a nut in an obscureand unhandy place, will not slip off in case the user's hand slips offof the said wrench.

Another object of the invention is the provision of a wrench of thischaracter, wherein it is novel in construction, unique in the set-up ofthe same, it being handy for close work service, and is latched whenengaged about the work, without possibility of slipping from place, andis convenient for operation thereof.

A further object of the invention is the provision of a wrench of thischaracter, wherein it is adaptable for engaging a piece of work fromeither end thereof, as there are companion jaws at opposite ends of thesame, these being of the closing-in type, and are latched together whenin engaging position.

A still further object of the invention is the provision of a Wrench ofthis character, which is simple in construction, thoroughl reliable andeflicient in operation, readily and easily applied and removed to andfrom the Work, strong, durable, possessed of few parts, and inexpensiveto manufacture and install.

With these and other objects in view the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, illustrated in the accompanyingdrawing, which discloses the preferred embodiment of the invention, andpointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a plan view of the wrench constructed in accordance with theinvention and in a work engaged position.

Figure 2 is an end elevation.

Figure 3 is a perspective view showing the wrench opened.

Figure 4 is a fragmentary perspective view showing a portion of a rodhaving a nut formation, with the wrench about to be engaged with thelatter.

Figure 5 is a fragmentary plan view of one closing-in end of the wrench.

Figure 6 is an end elevation thereof.

Similar reference characters indicate correspending parts throughout theseveral views in the drawing.

Referring to the drawing in detail, the wrench constituting the presentinvention, denoted generally at A, comprises a pair of crossed leversin, each having the reversely curved outer portions ll, pairs of thelatter matching each other adjacent to one another when the levers itare brought in parallel relation, one to the other.

On the end portions H of the levers ii! are oppositely disposedoutwardly arched substantially half circular shaped work engaging jawsI2, the levers l0 being swingingly connected together side-by-sideintermediate of their portions l I by a pivot in the form of adetachable fastener [3, so that such levers have an action for theengagement of the jaws I2 and the disengagement of the same, to and froma nut, the hextype thereof being generally denoted at B, in thisinstance formed on a rod, as identified at C, best seen in Figure 4 ofthe drawing.

The opposed jaws I! at their inner surfaces are corrugated as at M, sothat these jaws when closed-in on a nut will firmly grip the same toprevent relative slipping movements therebetween. The opposite jaws l2at their outermost terminal portions are provided with interlockingkeepers l5 which function as latches for holding the said opposite jawsfastened together when embracing a piece of work, as for example a nutB, and thereby maintaining a positive engagement, in case the users handslips off the wrench.

This type wrench is designed to facilitate use of a closed-end wrench ona hex unit nut located on a pipe, tube, fuel line, conduit, etc., whichis inaccessible to box wrenches, and involves all advantages of theclosed end wrenches.

The jaws l2 when approaching each other at opposite ends of the leversbecome automatically latched together, as should be obvious from Figures1 and 5 of the drawing, and also as at Figures 2 and 6 thereof.

The portions ll reversel off-set the jaws in their pairs at oppositeends of the wrench A, as will be apparent from the drawings, whichenables convenient leverage thereto.

What is claimed is:

1. A wrench of the kind described, comprising a pair of elongated leversarranged side-by-side for matched relation to each other, a pivotconnecting the levers intermediate of their length for side-by-sideswinging movement in and out of matched relation to each other, andlaterally projected socket forming jaw portions on the levers which willmatch to encircle a piece of work 3 when the levers are brought to amatched relation to each other.

2. A wrench of the kind described, comprising a pair of levers arrangedside-by-side for matched relation to each other, a pivot connecting thelevers intermediate of their length for side-byside swinging movement inand out of matched relation to each other, a laterally projected socketforming portion on each lever which will match to encircle a piece ofwork when the levers are brought to a matched relation to each other,and means interlocking the jaw portions when the levers are in matchedrelation for preventing lateral spreading thereof.

JOHN C. DINGLEY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 269,902 Wheeler Jan. 2, 1883784,151 Gilchrist Mar. 7, 1905 m 1,261,540 Hughes Apr. 2, 1918 1,343,882Woodward June 15, 1920 1,448,622 Frese et al. Mar. 13, 1923 1,481,517Kurz Jan. 22, 1924 FOREIGN PATENTS 15 Number Country Date 424,577Germany Jan. 26, 1926

